Inseam-shoe-sewing machine.



F. L. ALLEY.

INSEAM SHOE SEWING MACHINE.

APPLICATION mgn JAN. 13. 1913.

1,157,200. Patented 001:. 19, 1915.

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V F. L. ALLEY. INSEAM SHOE SEWING MACHINE. APFILICATION FILED 1AN.I3, 1913.

1,157,200. v Patent-ed 0011111915.

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F. L. ALLEY.

INSEAM SHOE SEWING MACHINE.

APPLICATION FILED IAN.13. 1913.-

1,157,200. Patented Oct. 19, 1915.

4 SHEETS-SHEET 3.

COLUMBIA PLANOORAPH c0.,w/\smNa'roN, 0. cv

F. L. ALLEY.

INSEAM SHOE SEWING MACHINE.

APPLICATION FILED JAN. 13. I913.

Patented Oct. 19, 1915.

4 SHEETS-SHEET 4.

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- mass TREIIEnIcK irL'LE'Y, or SYDNEY, NEW scorn Warns, AUSTRALIA, AssIGNon'To "um'rn'nsrron MACHINERY COMPANY, or PATERSON, NEW JERSEY, A con'rona- TIoiv for JERSEY.

INSEAM-SHOE-SEWING MAcHrNE.

Specification of Letters Patent.

PatentedOct. re, 1915.

'ap iication'fiiea January 13, 1913. Sen'alNo. 741,776.

To all warm itm'dy comem.-; v

Beitkno'wnthat I, FREDERICK "L. ALLEY, a citizeno ffthe United States, residing at Sydney, New South Wales, Australia, have invented certain new "and useful Improvements in tInse'am-Shoe-Sewing Machines; and I do herebydeclar'e'the following to be a full, clear, andexact description of the invention, sueh as Will enable others skilled. in the art'to which it appertains 'to'niake and use the same.

This inventionrelates to sewingmachines, and-more particularly to sewing vmachines for sewing inseams of boots'and shoes.

In machines ofthisclass as ordinarily constructed the work is fed by a lateral movement of the feed point which engages the insole in the channel during the sewing operation. The feed point penetrates only a slight distance into the substance of the insole, and bears substantially the entire strain of feeding the shoe. The back rest which'assists in supporting the shoe in the proper position with relation 'to the stitch forming devices is yieldingly held against the upper duringthe feeding movement of the shoe, and it is necessary for the feed point to feed the shoe against the friction or drag of the back gage on the upper.

The primary object'of the present invention -is to produce an inseam shoe sewing machine having'a back rest, the work engaging faceof which is advanced in the direction'of feed with the shoe as the shoe is fed, and which isope'rated so that there is no objectionable rubbing contact between the shoe and the back rest at any time during the sewing'operation.

' With the above objects in View, the invention comprises certain novel and. improved features hereinafter described and particularly pointed out in the claims, the advan: tages of which will be 'appa'rentto those skilled the art. U r

The inventionwill be readily understood froman inspection of .the accompanying drawings illustrating the -preferred embodiment of the invention and the following de taileddescriptionthereof;,

' In thejdrawi figs, Figure i1 is afront'el'ehe sw ls m chin tEe-"invaaaea; Bis a view in side elevation of the machine, partly axis of the back rest; Fig. 6 is a view in rear elevation of the parts shown in Fig.5, taken in a plane parallel with the aXis oflthe back rest; Fig. 7 is a View in front elevation of theparts illustrated in Fig. 5, taken in a plane parallel with the-axis of the backrest; and Fig. 8 is a sectional view taken on the line 88 of Fig. 6.

The machine illustrated in the drawings has the same general construction and arrangement of parts as the inseam shoe sewing machine shown. and described in the patent to French and Meyer, No. 412,704, dated October 8, 1889. The particular con str'uction and arrangement of the parts of the machine, with the exception ofthe back rest and the mechanism for actuating the back rest, are substantially. the same as illustrated and described in the. application of Alley and Beckman, Serial No. 600,5741, filed January 3, 1911.

In the drawings, 1 indicates the curved hook needle, 2'the looper, 3 the awl or feed point, 4 the channel guide, 5 the thread finger, and 6 the welt guide supported on the forward end of the welt guide slide 7 The construction and arrangement ofthef above mentioned parts 'of the machine, and the mechanism-for operating the same, are substantially the same as of the corresponding parts of the machine illustrated and dethe forward :end of the work rest slide 11.

The work rest slide is pressed forward to y e ie yfiesa s he k te t h. he shoe by'a spiral spring 12 connected 'atone extremity to a fixed stud 13 and atthe other to a ratchet disk 14: rotatably mounted on the stud. A pinion is carried bytheratchet disk and meshes with a rack formed on the backrestslide. During a part of the stitch forming operation the back rest slide is locked by a pawl 15 carried by a lever. 16 and arranged toengage the teeth of the ratchet disk 14. The lever 16 is actuated to engage the pawl 15 with the 'teethfof the ratchet disk by a tension spring 17., The

lever 16 is operated to release thepawl 15 1 from the ratchet disk and unlock the back ggage by the engagement of'a' cam actuated lever 18 with apin19 on the lever 16. The

construction and operation of the-mecha- 'nism above briefly described for actuating and locking the back rest slide is'substantially the same as that: disclosed in the above mentioned patent to French and Meyer.

In order to obviate any friction or drag which might be exerted by the back rest tending to. hold back the shoe while it'isbe- J ing fedand to assist in feeding the shoe, a rotary movement is given to' the back rest aboutthe stud'Q in a direction to advance the workengaging portion thereof with the shoe as the shoe is fed During the period in a cycle'of operations of the machine when the shoe is stationary, the back rest'is held from rotation so that there may be norubbing contact between the back rest andthe shoe which might injure the leather. A step by step rotary movement is therefore impartedto the back rest, the periods of rotation occurring while the' shoei's being fed and the periods of restwhen the needle is advancing through. the. Work and retracting .to draw the new loop through the materials and the preceding loop.

"The mechanism for imparting the step step movement to the back rest is. shown particularly in Figs. 5, 6, 7 and 8. This 'mechanism comprises a ratchet disk 20 secured to 'or formed integralv with the roll-8 and a pair of p'awlsv 21 and 22 pivotally,

mounted .on anoscillatory plate '23. arranged to engage the teeth on the ratchet disk 20,

being pressed into engagement" with, the ratchet/disk by springs 2 1. .The acting end of the pawl 21 is arranged half a tooth in advance of the pawl 22, as shown in'Fig. 5.

movement to the roll backrest 8. The roll The plate 23 upon which the 'pawls aresupported isrotatably. mounted on the stud 9 below the ratchet, disk 20, and is oscillated on the stud to impart a step by steprotary is held from backward rotationasthe plate is 'mo'ved to retract the pawls along'thecir cumferencefof' theratchet disk by "a ball ,clutchifl The ball. 12 of the clutch operates in a slotin the plate 23 and' is arranged to; 'engage'the lower'face of the disk 20 and an V inclined surface43 formed 'on the armglO.

coiled spring 4A interposed between the rest slide.

balland alug 15 on the arm 10 tends'to wedge the ball between the inclined surface 43 and the lower face of the disk 20: The a movement of the ball is limited byastop 46. a

The mechanism for oscillating 'thefplate 23 comprises a link-25 pivotally, connected 7' at one .end to the plate 23. and atthe other back rest slide.

in a groove 30'in the underside of a block to the arm 26 of a'bell crank lever 26.'27

fulcrumed .onfa stud 28 mounted .on the The arm, 27 of the bellcrank lever carries a roll 29' which engages i 31 secured to'the end of a slide 32 which is arranged ,to reciprocatein a; guide .33 at right angles to the direction of movement of the backrest slide. The bell cran klever' 26 27 and the block31 operate in a slot" in the back rest slide, as shownin Figs. 3 and- 4;. By means of the construction above:de-

scribed, the 'reciprocatory movement of the" slide 32 causes the oscillation of the bell crank lever j26 27, and v through the con; nection of said lever with the plate 23, the

said plate is oscillated on the stud 9 to act ui i ate the, backrest roll. ;As the back restslide moves forwardly or rearwardly, the roll 29 slides in the groove: in the block 31, an'dthe' movements imparted to the bell crank lev r ere y t0 back rest roll by the reciprocat-ory movement of the slide32,

are not afliectedbythe position of the back The mechanism forreciprocating thefslide 32 consists of a link 3%, connected at one end by a pin 35 with the slide, and at the other by. a bolt 36 with the lever:37 fulcrumed at 38 on the frame of the machine, and carry j ing a cam roll at 39 engaging a camgpath'Q V 7.

formed ina'cam disk secured to the cam shaft of the machine. The ,campath 40 is arranged in timed relation to 'the otherlparts of the machine so that the backrest roll 8': i

is rotated to advance the work engaging portion thereof with the shoe as the shoe, is

fedby the" lateral movement of the awl or feed point. The actuating mechanism for lie the backrest is constructed and arranged to advance'the work engaging portion of the back rest a distance equal to the length of one stitch during each'actuation' thereof.

In order thatthe rotary-movement of the backrest maybe varied to correspond with variations in the feed for'varyingjlengths of stitch, the lever37 is formed vwith a slot 41 through which the bolt 36 passes, and" the movement imparted to the back rest for.

each oscillation ofthe lever 37'can be varied f by adjusting the bolt 36in the slot31.-

ment between the back rest and the shoe at any time during the stitch forming opera- I tion.

per at the side of the last and below the bottom of the last when the shoe is in sewing posltion movably mounted on the support, and means for moving the back rest on its support always in a direction to advance the work engaging portion thereof. 7

2. An inseam shoe sewing machine, having, in combination, stitch forming devices, 1

aback rest slide, a rotary back rest mounted on the back rest slide to engage the shoe and means for rotating the back rest always in the same direction. 7

3. An inseam shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, a back rest support, a rotary back rest to bear against the upper at the side of the last and below the bottom of the last when the shoe is in sewing position mounted on the back rest support, and means for rotating the back rest always in a direction to advance the work engaging portion thereof;

4:. An inseam shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, a back rest support, a back rest to bear against the upper at. the side of the last and below the bottom of the last when the shoe is in sewing position movably mounted on the support, and means for moving the back rest on the support always in a direction to advance the work engaging portion thereof in timed relation to the operation of the stitch forming devices.

5. An inseam shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, a movable back rest to bear against the upper at the side of the last and below the bottom of the last when the shoe is in sewing position constructed to provide an endless surface for engagement with the shoe, and means to actuate the back rest to advance the shoe engaging portion thereof.

6. An inseam shoe sewing machine, having, ln'combinatlon, stitch forming devices including a curved hook needle, a rotary back rest to bear against the upper at the side of the last and below the bottom of the last when the shoe is in sewing position, and

' means to rotate the back rest always in the same direction.

'7. An inseam shoe sewing machine, having, in combination, stitch forming devices, feeding means, a back rest support, a back rest movably mounted on the support, and means for actuating the back rest on its support always in a direction to advance the work engaging portion thereof and in timed relation to the operation of the feeding means.

8; An inseam shoe sewing machine, having, in combination, stitch forming devices,

a back rest slide, a back rest movably mounted on the slide, means to lock and unlock the slide, means for yieldingly engaging the back rest with the shoe during the feeding of the shoe, and means for actuating the back rest to advance the work engaging portion thereof step by step in timed relation to the operation of the stitch forming devices.

9. An inseam shoe sewing machine, having, in combination, stitch forming devices including a curved hook needle, a back rest support, a back rest to bear against the upper at the side of the last and below the bot? tom of the last when the shoe is in sewing position movably mounted on the support, means for actuating the back rest to advance the work engaging portion thereof step by step in timed relation to the operation of the stitch forming devices.

10. An inseam shoe sewing machine, having, incombination, stitch forming devices, feeding means, a back rest slide, a rotary roll mounted on the forward end of the slide to engage the shoe, a ratchet and pawl mechanism for rotating said roll to assist in feeding the shoe, and a clutch to prevent retrograde movement of the roll.

FREDERICK L. ALLEY.

Witnesses: i 7

JAMES CAVANAGH, FREDERICK L. EnMANDs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

